Fluid controlling valve



IJuly 31, 1934. J. DE MQQY FLUID CONTROLLING VALVE Filed July 11, 1932 54 54 f2/ 22 HKZ 24 5/ 505@ Y INVENTOR ATTQRNEY Patented July 31, 1934 'y' UNITED s'raflss` laxrslvr oFFlcs 1,968,284 .ff Y FLUID coN'rRoLLlNG VALVE John be Macy, Cleveland, Ohio v Application July 11, 1932, Serial No. 621,899,

'ltr'laims (c1. 277,-61)

= This invention pertains broadly to fluid contr'olling Yvalves but more particularly to valves y-for'controlling the admission and exhaust of the pressure Viiuid employed for actuating lifts, jacks,

`In gasoline stations, garages, or similar places -wh'ere air vlifts are in use, it has been found'des'irab'le to operate such-elevating mechanism by "thesimple application of a blow gun which is -l commonly used in such places, thus reducing the number of pressure fluid conduits, and consequently reducing the cost of installation. It is 'therefore an object of this invention to produce a 'fluid controlling valve which will admit pressure fluid to the liftjby the simple introduction of a blow gun nozzle into the valve, such valve affordling a perfect seal to prevent the pressure iluid to leak ,thereby where the blow gun is removed therefrom.'

f Another object of this invention is to produce 'a valve'allowing the pressure fluid to exhaust from the lift or similar receiver 'without requiring the attention of the operator.

Another object of this invention-is to produce 3a' pressure fluid inlet and outlet controlling valve which is. simple in design, economic `of manu-- facture, and susceptible of easy manipulation.

^ Other objects more or less ancillary to the foregoing and the manner in which the vario-us obl jects are: attained' reside inthe specific constructi'c'n'and aggroupment of the elements peculiar to 'this' construction, 'as will become apparent from a' more complete examination of this speciiication, in the claims of which there are assembled certainV specicV combinations indicative of the scope vand spirit" of the invention.

, r4In'theY drawing: Fig. lis a longitudinal'cross sectional view il*- lustrating the valve in the opened position.

T46 Y Fig. 2 is a View similarto Fig.V l illustrating the valve in a closed position. Figi 34` is a view similar -to Fig. l illustrating the valve in van exhausting position. fFig. 4 is a longitudinal elevational view o'fa portion of the valve illustrating the locking dei- -vice in inoperative position. .'Fig. 5 is a View similar to Fig. 4 illustrating the locking device in operative position. `Fig. 6 is a cross sectional view taken in a plane indicated' by line 6 6 in Fig, 3.

Referring to the drawing in which like sym- 'bols designate corresponding parts throughout .the severalY views, therel is shown a cylindrical member or stem 10 terminated in `one Adirection {55 `by an'gexternal screw `threaded portion: 1l, and in the other direction by an enlarged cylindrical portion 12, forming a shoulder 13. YThe stem l1'() is internally machined to yform a tapered orilice or tapered socket 14, in'co'mrnunication with the interior of the stem through a passage `15. A

Within the socket 14-,`there`is provided an annular recess 16 havingdisposed therein an auf nular packing 17. Toward theleft, the stem 10 is provided with an enlarged bore 18 in coinmunication with the bore 15, and terminated-by 05 a ilat bottom or shoulder forming a valve seat 19. The bore 18 is in constant communication with the peripheral wall of the stem 10 through a plurality of radially disposed apertures 20.

Secured in screw tight engagement upon the screw threaded portion 11, there is anut 2`1, and interposed between this nut and the outer end 6i the stem 10, there is a gasket'f22, the purpose of which will be explained later. TheV nut 2'1' is formed with a pipe threaded bore 23 in commu- 76 nic'ation with the bore 18 through an outlet passage 24.

Loosely disposed within the bore 18 and capable of reciprocation therein, there is a 'cylindrical valve 25, having a bore 26 in communication with 80 the passage 24 of the nut 21.` The bore is also in constant communication with the bore 18 of the stem 10, through a plurality of radially disposed orifices 27. Adjacent the shoulder 19 and capable of engagement therewith, there is provided on the end of the valve 25, a washer gasket 28, secured thereto by a 4screw 29.Y

Reciprocably mounted upon the stem 10,'there is a sleeve 30, formed with two internal annular recesses 31 and 32, disposed in spaced relation 90 with eachother to provide between rthem aland. 33.- Secured within eachv of theseY recesses, there is a U-shaped gasket 34 preferably made of rubber With'the opening thereof' positioned toward each other. The sleeve 30 has a shell extending over 95 the enlarged portion 12 of the stem 10. Disposed within the'shell in engagement with the sleeve 3Q and the shoulder 13, there is la compression spring 35 tending to maintain the sleeve 30 towardy the left or in engagement with the nut 21; The sleeve 100 30 is provided with an'L-sha'ped slot-36 capable of slidable engagement with ay Vstationary pin 37 secured within the enlarged portion -12 of the stemlO. A

To'the nut 21, by the medium-of the threaded 105 bore 23, Ymay be attached a` pressure fluid conduit leading to the iiuid actuated lift or the like. The socket 14 is manufactured to permit the intro'- duction of the nozzle ofthe blow gun. Thisnozzle may be' introducedwithin'the packing17,thus 11'0 cape of the pressure fluid through the other of said openings, said valve being movable away from said shoulder when subjected to the action of the pressure fluid from said last mentioned opening, allowing thereby the pressure fluid to ow through said passage, passages through said member through which pressure uid from said outlet opening is free to exhaust to atmosphere, and means for controlling said exhaust.

7. A pressure fluid controlling valve comprising a member having a fluid passage therethrough forming inlet and outlet openings, said inlet opening comprising a socket capable to receive the nozzle of a blow gun, a shoulder within said passage, a pressure fluid actuated valve within said passage capable of engagement with said shoulder to prevent the ow of the pressure fluid from one of said openings to the other, said valve being shiftable and maintained out of engagement with said shoulder when subjected to the action of the pressure fluid from said socket, permitting thereby the pressure fluid to iiow through said passage, and controllable means permitting the exhaust of the pressure fluid from said outlet opening to the atmosphere.

8. A pressure iiuid controlling valve comprising a member having a fluid passage therethrough terminated by an inlet and an outlet opening, a shoulder within said passage, a valve in spaced relation with the wall of said passage and reciprocable therein, said valve being capable of engagement with said shoulder when subjected to the action of the pressure fluid from the outlet end of said passage preventing thereby the flow of the pressure iiuid through said passage, said valve being shiftable and maintained away from said shoulder when subjected to the action of the pressure fluid from the inlet end of said passage, and ports within said valve through which pressure fluid is adapted to flow from said inlet to said outlet opening, and controllable means in constant communication with the space between the said valve and the wall of said passage adapted to permit the exhaust of the pressure fluid from said outlet opening to the atmosphere.

9. A uid controlling valve comprising a mernber having enlarged and restricted bores constituting a pressure fluid passage, a shoulder formed at the intersection of said bores, a valve reciprocable within said enlarged bore, valve actuating and holding areas on said valve subjected to the action of the pressure fluid for shifting and maintaining said valve into or out of engagement with said shoulder to prevent or allow the flow of the pressure fluid through said passage, a port through said member through which pressure iiuid from the outlet end of said passage may escape to atmosphere, and means cooperating with said port for opening or closing the latter.

10. A fluid controlling valve comprising a member having a pressure fluid passage therethrough, a valve seat within said passage, a valve within said member having actuating and holding areas subjected to the action of the pressure fluid for shifting and maintaining said valve into or out of engagement with said valve seat allowing or preventing thereby the flow of the pressure fluid through said passage, and means independent of said valve for controlling the escape of the pressure fluid from the outlet end of said passage to the atmosphere.

11. A fluid controlling valve comprising a member having a pressure fluid passage therethrough, a valve seat within said passage, a valve within said member having actuating and holding areas subjected to the action of the pressure fluid for shifting and maintaining said valve into or out of engagement with said valve seat allowing or preventing thereby the flow of the pressure fluid through said passage, a passage-way in constant communication with said passage on one side of said seat through which pressure iiuid may escape from said passage to the atmosphere, and means for controlling said escape.

l2. A fluid controlling valve comprising a member having a pressure fluid passage therethrough terminated by an inlet and an outlet opening, a valve seat within said passage, a valve within said member having actuating and holding areas subjected to the action of the pressure uid for shifting and maintaining said valve into or out of engagement with said valve seat allowing or preventing thereby the flow of the pressure fluid through said passage, a passage-way in communication with said passage on one side of said seat through which pressure fluid may escape from said outlet opening to the atmosphere,and a second member movable to open or close said passage-way to allow or prevent said escape.

13. A fluid controlling valve comprising a member having a pressure fiuid passage therethrough terminated by an inlet and an outlet opening, a valve seat within said passage, a valve within said member having actuating and holding areas subjected to the action of the pressure fluid for shifting and maintaining said valve into or out of engagement with said valve seat allowing or preventing thereby the iiow of the pressure fluid through said passage, a passage-Way in communication with said passage on one side of said seat through which pressure fluid may escape from said outlet opening to the atmosphere, a movable member subjected to the tension of a compression spring for normally closing said passage-way, and means for locking said movable member against the tension of said spring away from said passageway to allow the escape of the pressure fluid past 120 said passage-way.

14. A fluid controlling valve comprising a stationary member formed with a pressure fluid passage therethrough terminated by an inlet and an outlet opening, exhaust passages through said 125 member, a pressure fluid actuated valve reciprocably mounted within said member for controlling the flow of the pressure fluid from one of said openings to the other, said exhaust passages being out of communication with one of said openings when the valve is in closed position, and means associated with said exhaust passages for controlling the escape of the pressure fluid therethrough.

15. A fluid controlling valve comprising a stationary member formed with an inlet and an outlet opening, exhaust passages through said member in communication with said outlet opening, a pressure uid actuated valve reciprocably mounted within a bore uniting said openings for MU- controlling the iiow of the pressure fluid from one of said openings to the other, and manually operated means associated with said passages for controlling the exhaust of the pressure fluid therethrough from said outlet opening.

JOHN DE MOOY. 

